Class I made not showing up as equal when equal

I have a custom class for holding a collection of quotes in swiftData in my app. It looks like this:

@Model
final class CollectionData: Equatable {
    var name: String
    var data: [Quote]
    var id: UUID = UUID()
    
    init(data: [Quote], name: String) {
        self.data = data
        self.name = name
    }
}

But when I compare equal empty versions it outputs false.

.onAppear {
var test = CollectionData(data: [], name: "") == CollectionData(data: [], name: "")
print(test) //prints false
}

I can't figure out what is causing this strange behavior, any help will be appreciated.

If you really want to compare two CollectionData without interfering with the SwiftData system, try this approach using simple functions that exclude the id, as shown in this SwiftUI example code:

// for testing
@Model
final class Quote {
    var text: String

    init(text: String) {
        self.text = text
    }
    
    func isEqual(to other: Quote) -> Bool {
        return text == other.text
    }
}

@Model
final class CollectionData {
    var name: String
    var data: [Quote]
    
    init(data: [Quote], name: String) {
        self.data = data
        self.name = name
    }
    
    func isEqual(to other: CollectionData) -> Bool {
        return isEqualQuotes(data, other.data) && name == other.name
    }
    
    func isEqualQuotes(_ lhs: [Quote], _ rhs: [Quote]) -> Bool {
        guard lhs.count == rhs.count else { return false }
        let sortedLhs = lhs.sorted { $0.text < $1.text }
        let sortedRhs = rhs.sorted { $0.text < $1.text }
        return zip(sortedLhs, sortedRhs).allSatisfy { $0.isEqual(to: $1) }
    }
}

struct ContentView: View {
    // ....
    @State private var result = false
    
    var body: some View {
        Text(result ? "collections are equal" : "collections NOT equal").font(.title)
            .onAppear {
                let collectionData1 = CollectionData(data: [Quote(text: "quote1"),Quote(text: "quote2")], name: "test1")
                let collectionData2 = CollectionData(data: [Quote(text: "quote2"),Quote(text: "quote1")], name: "test1")
                result = collectionData1.isEqual(to: collectionData2)
                if result {
                    print("---> collections are equal")
                } else {
                    print("---> collections NOT equal")
                }
            }
    }
}